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128010893049 = 33138927115121
BaseRepresentation
bin111011100111000001…
…0110011011011111001
3110020102022002010212000
41313032002303123321
54044131242034144
6134450221411213
712151141431504
oct1671602633371
9406368063760
10128010893049
114a31a8a2696
1220986709b09
13c0c0a72680
1462a524813b
1534e3403769
hex1dce0b36f9

128010893049 has 64 divisors (see below), whose sum is σ = 207304473600. Its totient is φ = 77598259200.

The previous prime is 128010893047. The next prime is 128010893063. The reversal of 128010893049 is 940398010821.

It is not a de Polignac number, because 128010893049 - 21 = 128010893047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128010892995 and 128010893013.

It is not an unprimeable number, because it can be changed into a prime (128010893041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8458209 + ... + 8473329.

It is an arithmetic number, because the mean of its divisors is an integer number (3239132400).

Almost surely, 2128010893049 is an apocalyptic number.

It is an amenable number.

128010893049 is a deficient number, since it is larger than the sum of its proper divisors (79293580551).

128010893049 is a wasteful number, since it uses less digits than its factorization.

128010893049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15503 (or 15497 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 128010893049 in words is "one hundred twenty-eight billion, ten million, eight hundred ninety-three thousand, forty-nine".

Divisors: 1 3 9 13 27 39 89 117 267 271 351 801 813 1157 2403 2439 3471 3523 7317 10413 10569 15121 24119 31239 31707 45363 72357 95121 136089 196573 217071 313547 408267 589719 651213 940641 1345769 1769157 2821923 4037307 4097791 5307471 8465769 12111921 12293373 17494997 36335763 36880119 52484991 53271283 110640357 157454973 159813849 364703399 472364919 479441547 1094110197 1438324641 3282330591 4741144187 9846991773 14223432561 42670297683 128010893049